[JohnForde]

By extreme good fortune and a little guile I I got my hands on the first built from the ground up Electric Van in the US. It's a GM/Brightdrop Zevo 600. I have had it since Sept 23. It's pretty fantastic. 178 kWh battery & AWD. Range is 275 miles in the winter (MN) and 360 summer.

I have been designing my aero tail for 2 years. I bought the aluminum & polycarbonate sheeting today and will start building soon. 2.5:1 slope doors extending 60" behind the body but only 48" behind the step bumper. The Zevo is 84" Wide. My doors should reduce the wake or 'aperture' to 24". Behind that will be roll out plastic 'feathers', eliminating the aperture entirely. Under hard braking the feathers will tilt then tumble back inside the doors. Ideally I will be able to post efficiency numbers later this summer. A 20% decrease in drag would be great!

I invite comments and suggestions.